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Fast Facts from the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990–2019

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Fast Facts from the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990–2019 Fast Facts 1990–2019 National-Level U.S. Greenhouse Gas Inventory 7% 3% 10% U.S. Greenhouse Gas Greenhouse U.S. Emissions in 2019* Nitrous Oxide (N O) Fluorinated Gases 2 80% Methane (CH4) Carbon Dioxide (CO ) 29% 2 23% 7% 10% 6% 25% Total U.S. Greenhouse Gas Greenhouse Emissions U.S. Total Sector Economic in 2019* by Transportation Electricity Industry Agriculture Commercial Residential 2019 Total Emissions 2018–2019 Change 1990–2019 Change million metric tons of CO equivalent 6,558 2 -1.7% total emissions 1.8% total emissions CO emissions from CO removals by forests 2 2 CO emissions CO emissions fossil fuel combustion: and other lands: -2.2% 2 2.8% 2 CO emissions from fossil CO emissions from fossil 74.1% 12.4% 2 2 of total emissions of total emissions -2.7% fuel combustion 2.6% fuel combustion U.S. Greenhouse Gas Emissions * Percentages may not add to 100% due to independent rounding and the way the inventory qualifies U.S. territories (not shown) as a separate sector. Emissions from Land-Use, Land-Use Change and Forestry are reported separately and not shown in the figure. To learn more about the inventory, visit www.epa.gov/ghgemissions/inventory-us-greenhouse-gas-emissions-and-sinks, April 2021 or explore the data at https://cfpub.epa.gov/ghgdata/inventoryexplorer. EPA 430-F-21-011 U.S. Greenhouse Gas Emissions U.S. Greenhouse Gas Emissions and Sinks (MMT CO2 Equivalents) by Gas Gas/Source* 1990 2005 2015 2016 2017 2018 2019 CO 6,134.5 5,371.8 5,248.0 5,207.8 5,375.5 5,255.8 HFCs, PFCs, SF6, and NF3 Nitrous Oxide 2 5,113.5 8,000 Methane Carbon Dioxide Fossil Fuel Combustion 4,731.5 5,753.5 5,008.3 4,911.5 4,854.5 4,991.4 4,856.7 7,000 Transportation 1,469.1 1,858.6 1,719.2 1,759.9 1,782.4 1,816.6 1,817.2 6,000 Electric Power Sector 1,820.0 2,400.1 1,900.6 1,808.9 1,732.0 1,752.9 1,606.0 Eq. 2 O 5,000 Industrial 853.8 852.9 797.3 792.5 790.1 813.6 822.5 C 4,000 Residential 338.6 358.9 317.3 292.8 293.4 338.1 336.8 MMT 3,000 Commercial 228.3 227.1 244.6 231.6 232.0 245.7 249.7 2,000 U.S. Territories 21.7 55.9 29.2 26.0 24.6 24.6 24.6 1,000 Non-Energy Use of Fuels 112.8 129.1 108.5 99.8 113.5 129.7 128.8 0 1990 1995 2000 2005 2010 2015 Petroleum Systems 9.7 12.1 32.4 21.8 25.0 37.1 47.3 Iron and Steel Production & Metallurgical Coke Production 104.7 70.1 47.9 43.6 40.6 42.6 41.3 Cement Production 33.5 46.2 39.9 39.4 40.3 39.0 40.9 U.S. Greenhouse Gas Emissions/Sinks Natural Gas Systems 32.0 25.2 29.1 30.1 31.2 33.9 37.2 by Chapter/IPCC Sector Petrochemical Production 21.6 27.4 28.1 28.3 28.9 29.3 30.8 Ammonia Production 13.0 9.2 10.6 10.2 11.1 12.2 12.3 Waste Industrial Processes Agriculture Lime Production 11.7 14.6 13.3 12.6 12.9 13.1 12.1 Energy Land Use, Land-Use Change, Incineration of Waste 8.1 12.7 11.5 11.5 11.5 11.5 11.5 and Forestry (sinks) 8,000 Other Process Uses of Carbonates 6.3 7.6 12.2 11.0 9.9 7.5 7.5 7,000 Urea Consumption for Non-Agricultural Purposes 3.8 3.7 4.6 5.1 5.0 5.9 6.2 6,000 Eq. Urea Fertilization 2.4 3.5 4.7 4.9 5.1 5.2 5.3 2 O 5,000 C Carbon Dioxide Consumption 1.5 1.4 4.9 4.6 4.6 4.1 4.9 4,000 Liming 4.7 4.3 3.7 3.1 3.1 2.2 2.4 MMT 3,000 Aluminum Production 6.8 4.1 2.8 1.3 1.2 1.5 1.9 2,000 1,000 Soda Ash Production 1.4 1.7 1.7 1.7 1.8 1.7 1.8 0 Ferroalloy Production 2.2 1.4 2.0 1.8 2.0 2.1 1.6 -1,000 Titanium Dioxide Production 1.2 1.8 1.6 1.7 1.7 1.5 1.5 1990 1995 2000 2005 2010 2015 Glass Production 1.5 1.9 1.3 1.2 1.3 1.3 1.3 Zinc Production 0.6 1.0 0.9 0.8 0.9 1.0 1.0 Phosphoric Acid Production 1.5 1.3 1.0 1.0 1.0 0.9 0.9 2019 U.S. CO2 Emissions Lead Production 0.5 0.6 0.5 0.5 0.5 0.5 0.5 from Fossil Fuel Combustion by Carbide Production and Consumption 0.4 0.2 0.2 0.2 0.2 0.2 0.2 Fuel Type and End-Use Sector Wood Biomass, Ethanol, and Biodiesel Consumptiona 219.4 230.7 317.7 316.6 312.3 319.6 316.2 b Petroleum Natural Gas Coal International Bunker Fuels 103.5 113.2 110.9 116.6 120.1 122.1 116.1 c CH4 776.9 686.1 651.5 642.4 648.4 655.9 659.7 Relative Contribution 2,000 1,817 by Fuel Type Enteric Fermentation 164.7 169.3 166.9 172.2 175.8 178.0 178.6 1,600 1,606 Natural Gas Systems 186.9 164.2 149.8 147.3 148.7 152.5 157.6 Eq. 2 1,200 O 822 Landfills 176.6 131.4 111.4 108.0 109.4 112.1 114.5 C 800 Manure Management 37.1 51.6 57.9 59.6 59.9 61.7 62.4 337 MMT 400 250 Coal Mining 96.5 64.1 61.2 53.8 54.8 52.7 47.4 0 25 Petroleum Systems 48.9 39.5 41.5 39.2 39.3 37.3 39.1 Industrial Electricity Wastewater Treatment 20.2 20.1 18.8 18.7 18.5 18.4 18.4 Commercial Residential Generation Transportation U.S. Territories Rice Cultivation 16.0 18.0 16.2 15.8 14.9 15.6 15.1 Note: Electricity generation also includes emissions of less than 0.5 Tg CO2 Eq. from Stationary Combustion 8.6 7.8 8.5 7.9 7.6 8.5 8.7 geothermal-based electricity generation. Abandoned Oil and Gas Wells 6.8 7.2 7.4 7.4 7.2 7.3 6.6 Abandoned Underground Coal Mines 7.2 6.6 6.4 6.7 6.4 6.2 5.9 U.S. Greenhouse Gas Emissions Mobile Combustion 6.4 4.0 2.6 2.5 2.5 2.4 2.4 Allocated to Economic Sectors Composting 0.4 1.9 2.1 2.3 2.4 2.3 2.3 Residential Commercial Agriculture Field Burning of Agricultural Residues 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Industry Electric Power Industry Transportation Petrochemical Production 0.2 0.1 0.2 0.2 0.3 0.3 0.3 8,000 Anaerobic Digestion at Biogas Facilities + 0.1 0.2 0.2 0.2 0.2 0.2 7,000 International Bunker Fuelsb 0.2 0.1 0.1 0.1 0.1 0.1 0.1 6,000 c Eq. N2O 452.7 455.8 468.2 450.8 446.3 459.2 457.1 2 O 5,000 C Agricultural Soil Management 315.9 313.4 348.5 330.1 327.6 338.2 344.6 4,000 Wastewater Treatment 18.7 23.0 25.4 25.9 26.4 26.1 26.4 MMT 3,000 2,000 Stationary Combustion 25.1 34.4 30.5 30.0 28.4 28.2 24.9 1,000 Manure Management 14.0 16.4 17.5 18.1 18.7 19.4 19.6 0 Mobile Combustion 44.7 41.6 21.7 20.8 19.8 18.8 18.0 1990 1995 2000 2005 2010 2015 Nitric Acid Production 12.1 11.3 11.6 10.1 9.3 9.6 10.0 Note: Does not include U.S. territories and LULUCF sector. Adipic Acid Production 15.2 7.1 4.3 7.0 7.4 10.3 5.3 N2O from Product Uses 4.2 4.2 4.2 4.2 4.2 4.2 4.2 U.S. Greenhouse Gas Emissions Composting 0.3 1.7 1.9 2.0 2.2 2.0 2.0 with Electricity Distributed to Economic Sectors Caprolactam, Glyoxal, and Glyoxylic Acid Production 1.7 2.1 1.9 1.7 1.5 1.4 1.4 Incineration of Waste 0.5 0.4 0.3 0.3 0.3 0.3 0.3 Agriculture Residential Commercial Electronics Industry + 0.1 0.2 0.2 0.3 0.3 0.2 Transportation Industry Field Burning of Agricultural Residues 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8,000 b 7,000 International Bunker Fuels 0.9 1.0 1.0 1.0 1.1 1.1 1.0 6,000 HFCs, PFCs, SF6, and NF3 99.7 146.6 179.6 179.1 180.9 180.8 185.7 Eq.
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